DeepSeek-V4.1-Flash vs Muse-Spark-Open-816B-A42B
Specs, VRAM requirements and download trends — updated 24 October 2026.
deepseek-ai · A · Open weights
Params
763.2 B
Context
—
30d
1.5 M
mit · commercial OK
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | DeepSeek-V4.1-Flash | Muse-Spark-Open-816B-A42B |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 763.2 B | 822.0 B |
| Architecture | DeepseekV41ForCausalLM | MuseSparkForConditionalGeneration |
| Context length | 1,048,576 | 1,048,576 |
| Licence | mit | other |
| Commercial use | Allowed | Unknown |
| Languages | — | 1 |
| Downloads 30d | 1,478,503 | 5,196 |
| Downloads all time | 2.1 M | 5 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | Yes — accept licence |
| First seen on the Hub | 2026-09-10 | 2026-09-15 |
| API input price / 1M tokens | $0.02 | $1.25 |
| API output price / 1M tokens | $1.00 | $4.25 |
| Est. cost per 1M input + 1M output tokens | $1.02 | $5.50 |
| Cached input / 1M tokens | $0.015 | $0.15 |
| AA Intelligence Index | 24.7 | — |
| AA Coding Index | — | — |
| AA Agentic Index | — | — |
| Max output tokens | 943,718 | 943,718 |
| API providers | 33 | 6 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
DeepSeek-V4.1-Flash
$1.02
Muse-Spark-Open-816B-A42B
$5.50
DeepSeek-V4.1-Flash is 5.4× cheaper at list price.
Download trend
Daily snapshots, last 20 days (5 Oct – 24 Oct)
1.5 M2 K
DeepSeek-V4.1-Flash
Muse-Spark-Open-816B-A42B
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
DeepSeek-V4.1-Flash · fp16
676.3 GB / 24 GB
Muse-Spark-Open-816B-A42B · fp16
1,932.6 GB / 24 GB
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